Header panel



FIG. 1 is a top, front, and right side perspective view of a header panel showing our new design;

FIG. 2 is a top plain view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational plain view thereof;

FIG. 6 is a bottom plain view thereof; and,

FIG. 7 is a left side elevational view thereof. 

The ornamental design for a header panel, as shown and described. 